This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 343 |
| 3 | 47045063 |
| 4 | 120557700002039900093719 |
| 5 | 2028855694577167886745673657138240403111752164055092142822588716482823 |